Lister-cultivator.



No. 665,963. Patented Ian. I5, I90L W. S. GRAHAM.

LISTER CULTIVATOB.

(Application filed Aug. 30, 1900.)

(No Model.

3 Sheats-Sheet l.

attorngg Tn: mums PDERS 00.. PNOTO-LITNKL. wmmu'mn. n, c.

No. 665,963. Patented Ian. l5, I90I. W. S. GRAHAM.

LISTER CULTIVATOB.

(Application filed Aug. 30, 1900.)

3 Sheets-Sheet 2.

(No Model.)

in: NORRIS PETERS c1:a Puc'ruuwo wAsmNaTou, n. c.

NITED STATES PATENT ()FFICE.

WILLIAM S. GRAHAM, OF CANTON, ILLINOIS, ASSIGNOR TO THE PARLIN &ORENDORFF COMPANY, OF SAME PLACE.

LISTER-CU LTIVATO R.

SPECIFICATION formingpart of Letters Patent N 0. 665,963, dated January15, 1901.

' Application filed August 30. 1900. Serial No. 28,585. (No model.)

T whom it y 007L067: zontal swing and endwise motion in the seat- Be itknown that I,WILLIAM S. GRAHAM, of bar independent of thecultivator-frames, or thecity of Oanton,county ofFulton,and State thereverse. The opposite end of the seatof Illiuois,have invented certainnew and usebar is connected with the opposite cultivator- 5 fulImprovements in Lister Cultivators, of frame in a manner similar to thatshown and which the following is a specification. described. Across-shaft 11 is journaled in This invention relates to various detailsin bearings 12, which extend rearward from the a cultivator adapted forcultivating listed ends of cross-bar 5, and adjustable arms crops. It isexemplified in the structure heremounted on the rock-shaft 11 carry thecul- IO inafter described, and it is defined in the aptivating-disks.The arms each consist of a pended claims. member 13, fastened onto shaft11 at right In the drawings forming part of this speciangles therewith,and a member 15, forming fication, Figure 1 is a side elevation of so acontinuation of member 13 and axially admuch of a cultivator as isneeded to explain justahle with relation thereto. A ring-clamp 15 myinvention. Fig. 2 is a plan of an end of 14 embraces the forward end ofmember 15 of a cultivator, showing one complete appliance thedisk-supporting arm and provides means for cultivating a single row andshowing in whereby the disk-shaft may be tilted, so as to partly-brokenlines the seat-board used to raise either end above the other end. Theconnect two such appliances. Fig.3is acrossunder surface of the rear endof member 15 20 section through a furrow in which corn has isdisk-formed and radially corrugated, as been listed. Fig. 4 is a plan ofa listed furshown in Fig. 7, and an opposing disk 32 row, illustratingthe action of my cultivator carries a shaft 16 for the cultivating-disks17 thereon. Fig. 5 is a detail, partly in section, and is secured tomember 15 of the cultivatorr illustrating the cultivating-disks set tothrow arm by means of a bolt 33. The disk-shaft 25 soil toward the row.Fig. 6 is a similar deis turned, so as to bring one end in front of tailshowing the disks set to throw the soil the other, by loosening bolt 33,making the from the row. Fig. 7 is a detail in side elerequired swing ofthe shaft 16, and retightvation of a disk-sustaining arm. Fig. 8 is aening the bolt. The arms are adjustable detail in perspective of theunder side of an lengthwise of the shaft 11, and the shaft may 0 end ofthe seat-board, showing the means embe rocked to raise and lower thedisks 17 to ployed to connect the seat-board with the culany desiredextent. A hand-lever 18 is fastivator-frames. Fig. 9 is a detail in sideeletened onto the rock-shaft 11, and it has a vation of acultivating-blade which constilock adapted to engage the teeth of a rack19. tutes a part of my invention. Fig. 10 isa de- By means of the rackand the lock-lever the 35 tail, partly in vertical section, of a part ofdisks may be held raised, as shown in Figs. the frame structure. 1 and2, to facilitate turning around at the Runners 1 carry uprights 2 and 3,on the ends of the field, and the disks may also be upper ends of whichcross-bars 4 and 5 are lowered to any desired extent and secured in 0supported. The crossbars extend beyond such lowered position. 40 therunners. Bars 6 connect the ends of one The hubs 24 of thecultivating-disks 17 are cross-bar with the ends of the other crosseachrecessed in each end adjacent to shaft bar, and central bar 7 alsoextends from one 16, as shown at 25 in Figs. 5 and 6, and spools,cross-bar to the other. The seat-bar 9,which as 27 and 28, interposedbetween the hubs of ,v extends from the cultivating appliance to a thewheels, have each a diminished end to fit 5 duplicate thereof, (notshown,) has a loopinto a recess of a hub and an enlarged rebar 10 on itsunder side parallel with its cessed end to fit over the end of a hub.The length, and such loop-bar embraces bar '7 of enlarged and recessedend of spool 28 is shown the cultivator-frame. A loop-bar 8 on the at 29and the diminished end is shown at 30. under side of frame-bar 7embraces loop-bar The cultivator operates in a furrow, with the 50 10crosswise thereof, and the two loops condisks acting on the sides of thefurrow and meet the seat-bar to the cultivator-framein a so the outerend of a shaft 16 is always higher manner permitting a limited amount ofhorithan its inner end. It is desirable to exclude dust and dirt fromthe bearings of the disks to the greatest possible extent, and I havefound that it is advantageous in this conne ction to cover theupward-presented ends of the hubs. If the disks were always used tothrow the soil in one direction, either toward or from the corn, itwould be a simple matter to protect the upward-presented ends of thehubs; but it requires specialproyisionto protect either end of a hubthat may be presented upward, and in this instance such provision isembodied in the recessed ends of the hubs and in the spools, one end ofeachof which is enlarged and recessed to receive a hub, while the otherend is diminished. The end cap 31 and the end stop 26 hold the hubs andthe spools in proper position on the shaft 16,. I

A furrow in which corn has been planted by means of alister-plantersomewhat resembles the outline given in Fig. 3. In thisfigure the sides of the main furrow are shown at 0. Supplementaryfurrows made to procure covering-soil are shown at B, and a centralridge in which the corn is planted is shown at A. The young corn standson the ridge above the supplementary furrows, but below the sides of themain furrow, and it is well to take soil from the sides of the mainfurrow at the first cultivation to fill the supplementary furrows. ThisI effect by means of the curved cutter-blades 20, which cut into thebases of the walls 0 of the main furrow, as shown in Fig. 4, and turnthe loosened and pulverized soil into the furrows B. The front endofeachof the cutter-blades is in this instance vertical, and-such frontend is secured to a runner in a manner permitting .vertical adjustmentof the rear end. In this case a bolt 21 provides a pivot for the blade,and a bolt23, extended through a slot 22 in the front end of the blade,provides means for securing the rear end of the blade more or lessdepressed. The blades extend outward from the runners, as shown in Fig.1, and they incline upward and backward to convey the soil in the properdirection.

The cross-bars 4 and 5 are each composed of a pair of parallel bars, as4 and 4 in Fig. 10, and the front-to-back bars are connected. with thecross-bars by means of clips that spread the individual members ofthecross bars apart and hold the connections. from sliding out of place.One of these clips consists of a strut-block 35, having trunnions,

that engage holes in bars 4* and 4?, clip-plates 36 and37, that embracethe bars above and below the strut-block, and a bolt 38, that extendsthrough the clip-plates and the strutblock and secures all in place. Thetrun nions of the strut-block prevent motion of the clip lengthwise ofthe bars, while the clipplates' hold the bars from separating.- The bolt38 secures the clip-plates to the bars and holds them in line with thestrut-block, and this bolt is also used to connect other bars of thestructure with the divided cross-bars.

There are a plurality of disks on shafts 16, preferably three on each,and they are ad.- justedto eonform to thesides of the furrow andgradually level the same down by repeated cultivation. At the firstcultivation, it is .prefielableto throw soil toward the corn by means ofthe cutting-blades and to set the disk to cut from the corn. Insubsequent operations the blades, maybe dispensed with and thedisks beset to throw soil toward the corn.-

The connection between the seat-bar or spreader-board and the cultivatorframes enables therunners to freely track the furrows in which they areplaced and advance at slightly-variant speeds without cram ping theconnections.

1. Ina lister-cultivator, the combination with a furrow-trackingframe,of cutter-blades curved outward and rearward from the frame withtheir loweredges in advance of their upper edges, whereby soil is cutout of the sides of the furrow and carried over the blades toward therow, and disks in the rear of the cutter-blades adapted to carry soilfrom the. row, substantially as described.

2. In a lister-cultivato r, the combination of a furrow-tracking frame,a rock-shaft journaled crosswise of the frame, arms on the shaftextended rearward therefrom,such arms, beingv each composed of membersaxially ada justable with relation to each other, cross-l 10-. shaftsswingably adjust-able on the rear ends. of the arms, disks on thecross-shafts, andn means for rocking the rock-shaft, substans tially asdescribed.

3. A lister-cultivator frame comprising 105-,

runners, uprights, cross-bars and longitudinal bars, the.cross-barsbeing composed of two members separated bytrunnionedstrutblocks, the trunnions of which engage holes in thecross-bar members, clip.-.plates embracno ing the cross-bars andsecuring-bolts extending through the clip-plates and through the-,strut-blocks, substantially as described.

' v 4;. In a Lister-cultivator, the combinationofij transversedisk-shafts, disk-hubs recessed at IYI'S} 1 their ends, and spools eachhaving. one end; 3 enlarged-and. recessed to. embrace an. end of I a huband the other end reduced to enter the recess in the end of the hub,substantially as and for the purpose set forth.

5. .In alister-cultivator the combination of a furrow tracking frame, aseat bar or spreader-board, a loop-bar under the end of thespreader-board embracing a longitudinal bar of the furrow-trackingframe, and a loop I25 bar on such longitudinal bar of the furrowtrackingframe embracing the loop-bar of the spreader-board, substantially asdescribed. 1 .In testimony whereof I sign my name in the presence of twosubscribing witnesses. WM. S. GRAHAM.

Witnesses:

A. L. GARDNER, R. A. HALL.

